IP属地:内蒙古自治区
NSString *filePath=@"/Users/nlp/Desktop/NSString_Test_01/NSString_Test_0...
NSArray* array=@[@"test1",@"test2",@"test3",@"test4",@"test5",@"test6",@...
/**block遍历数组方法@param obj数组内对象@param idx位置@param stop是否停止@return*/[array ...
NSArray* array=@[@"test1",@"test2",@"test3",@"test4",@"test5",@"test6",@...
//是否以str开头 - (BOOL)hasPrefix:(NSString*)str; //是否以str结束 - (BOOL)hasSuffi...
NSString* str=@"I have Space";NSString* finnalStr=[strstringByTrimmingCh...
NSString* str=@"AbCd"; //全部大写 NSString *upStr=[str uppercaseString]; //全...